Also available on Xbox Live Arcade is Mensa Academy, also for 800 MS Points (£6.80 / $10).

Full retail releases NHL 13, Fatal Inertia and Madagascar 3: The Video Game are also now available for download, along with the Crimson Map Pack for Halo 4 and the Dunwall City Trails DLC for Dishonored.

Finally, there is a sale on Tropico 4 and all of its DLC this week, with prices dropped by 33% on the game and 50% for all add-ons.